public class calaclatorTest {
    public static void main(String[] args) {
        // int a = 10;
        // int b = ++a;
        // int b = a++;
        // System.out.println("a = " + a + ",b = " + b);

        int d = 10;
        int e = d + d++ + ++d;
        System.out.println(e);

        int f = 10;
        int g = f + f-- + --f;
        System.out.println(g);

        // boolean h = true;
        // boolean i = false;·
        // System.out.println(h && i);

        int j = 2;
        int k = j << 2;
        System.out.println(k);
    }
}
